﻿<topic>
	<head>
		<title>Union</title>
		<keywords>
			<keyword term="execution plan, union"/>
			<keyword term="logical operators, union"/>
		</keywords>
		<links>
			<link href="Execution Plan Reference.html">Execution Plan Reference</link>
		</links>
	</head>
	<body>
		<summary>
			<p>
				The <b>Union</b> operator scans multiple inputs, outputting each row scanned and removing duplicates.
			</p>
			<p>
				<b>Union</b> is a logical operator.
			</p>
		</summary>
	</body>
</topic>
